Examples with RowDataPacket io.mycat.net.mysql.RowDataPacket used on opensource projects

Example 61 with RowDataPacket

use of io.mycat.net.mysql.RowDataPacket in project Mycat_plus by coderczp.

the class SelectUser method response.

public static void response(ServerConnection c) {
    if (MycatServer.getInstance().isOnline()) {
        ByteBuffer buffer = c.allocate();
        buffer = header.write(buffer, c, true);
        for (FieldPacket field : fields) {
            buffer = field.write(buffer, c, true);
        }
        buffer = eof.write(buffer, c, true);
        byte packetId = eof.packetId;
        RowDataPacket row = new RowDataPacket(FIELD_COUNT);
        row.add(getUser(c));
        row.packetId = ++packetId;
        buffer = row.write(buffer, c, true);
        EOFPacket lastEof = new EOFPacket();
        lastEof.packetId = ++packetId;
        buffer = lastEof.write(buffer, c, true);
        c.write(buffer);
    } else {
        error.write(c);
    }
}

Example 62 with RowDataPacket

use of io.mycat.net.mysql.RowDataPacket in project Mycat_plus by coderczp.

the class ShowCobarCluster method getRows.

private static List<RowDataPacket> getRows(ServerConnection c) {
    List<RowDataPacket> rows = new LinkedList<RowDataPacket>();
    MycatConfig config = MycatServer.getInstance().getConfig();
    MycatCluster cluster = config.getCluster();
    Map<String, SchemaConfig> schemas = config.getSchemas();
    SchemaConfig schema = (c.getSchema() == null) ? null : schemas.get(c.getSchema());
    // 如果没有指定schema或者schema为null，则使用全部集群。
    if (schema == null) {
        Map<String, MycatNode> nodes = cluster.getNodes();
        for (MycatNode n : nodes.values()) {
            if (n != null && n.isOnline()) {
                rows.add(getRow(n, c.getCharset()));
            }
        }
    } else {
        Map<String, MycatNode> nodes = cluster.getNodes();
        for (MycatNode n : nodes.values()) {
            if (n != null && n.isOnline()) {
                rows.add(getRow(n, c.getCharset()));
            }
        }
    }
    if (rows.size() == 0) {
        alarm.error(Alarms.CLUSTER_EMPTY + c.toString());
    }
    return rows;
}

Example 63 with RowDataPacket

use of io.mycat.net.mysql.RowDataPacket in project Mycat_plus by coderczp.

the class ShowMyCATCluster method response.

public static void response(ServerConnection c) {
    ByteBuffer buffer = c.allocate();
    // write header
    buffer = header.write(buffer, c, true);
    // write field
    for (FieldPacket field : fields) {
        buffer = field.write(buffer, c, true);
    }
    // write eof
    buffer = eof.write(buffer, c, true);
    // write rows
    byte packetId = eof.packetId;
    for (RowDataPacket row : getRows(c)) {
        row.packetId = ++packetId;
        buffer = row.write(buffer, c, true);
    }
    // last eof
    EOFPacket lastEof = new EOFPacket();
    lastEof.packetId = ++packetId;
    buffer = lastEof.write(buffer, c, true);
    // post write
    c.write(buffer);
}

Example 64 with RowDataPacket

use of io.mycat.net.mysql.RowDataPacket in project Mycat_plus by coderczp.

the class ShowMyCATCluster method getRow.

private static RowDataPacket getRow(MycatNode node, String charset) {
    MycatNodeConfig conf = node.getConfig();
    RowDataPacket row = new RowDataPacket(FIELD_COUNT);
    row.add(StringUtil.encode(conf.getHost(), charset));
    row.add(IntegerUtil.toBytes(conf.getWeight()));
    return row;
}

Example 65 with RowDataPacket

use of io.mycat.net.mysql.RowDataPacket in project Mycat-Server by MyCATApache.

the class ShareRowOutPutDataHandler method getRow.

// 不是主键，获取join左边的的记录
private byte[] getRow(Map<String, byte[]> batchRowsCopy, String value, int index) {
    for (Map.Entry<String, byte[]> e : batchRowsCopy.entrySet()) {
        String key = e.getKey();
        RowDataPacket rowDataPkg = ResultSetUtil.parseRowData(e.getValue(), afields);
        byte[] columnValue = rowDataPkg.fieldValues.get(index);
        if (columnValue == null)
            continue;
        String id = ByteUtil.getString(columnValue);
        if (id.equals(value)) {
            return batchRowsCopy.remove(key);
        }
    }
    return null;
}